SHOCK WAVES
Measuring the Dynamic Response of Materials
by William M Isbell (ATA Associates, USA)
Table of Contents (245k)
Preface (62k)
Introduction (78k)
Dr William M Isbell is President of ATA Associates, a firm specializing in the design and manufacture of advanced instrumentation for shock wave research. Dr Isbell received his Doctorate of Engineering degree at the Shock Wave Research Center of Tohoku University in Japan and his degree as Bachelor of Science from the University of California at Berkeley. During his over 40 years of research he has held positions in several companies including General Research Corporation, Lawrence National Laboratories, the University of Texas at Austin, General Motors Defense Research Laboratories, and Stanford Research Institute. He is Founding President and Inaugural Fellow of the Electric Launcher Association, one of the Founding Board of Directors of the Hypervelocity Impact Society, Senior Research Fellow of the University of Texas, and Fellow of the Aeroballistic Range Association. He has authored over 150 technical publications in diverse areas, such as spacecraft shielding from impact with space debris, and the development of advanced diagnostic techniques for measurement of material response to intense loadings by impact and by radiant energy deposition, such as that generated in underground nuclear tests, pulsed lasers, and electron beam machines. He has advanced the state of the art in measurement techniques in each of these areas, concentrating on obtaining measurements under difficult experimental conditions.
This book presents, in a concise and comprehensive manner, the essential techniques by which shock wave physicists probe the boundaries of material response to impulsive loads. The author is a well-known figure in shock wave physics, having worked for over forty years with many of the outstanding researchers in the field.
The book acquaints readers both with modern instrumentation techniques including interferometers such as the DISAR and the VISAR — and with methods that have been established by previous generations of experimentalists — including acoustic measurement techniques and low to moderate strain rate machines.
Besides an exposition of the theoretical aspects of shock wave phenomena, it contains large amounts of data on equations of state, spallation thresholds, shock wave attenuation from very high pressures, and elastic constants. Much of this information has been previously unavailable in open publications.
The text documents the transition from testing performed with explosives to the use of modern compressed gas guns, which permit much more detailed diagnostics and controlled conditions. In particular, the author pioneered the use of two-stage light gas guns which launch high-density plates against specimens located at the muzzle. The high launch velocity of these guns produced data that represents the highest pressures obtained in the free world at that time.
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